Home / 90,114.16-124,354.02-53,821.76

Finding the Fourth Proportional to 90,114.16, 124,354.02 and 53,821.76

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Solution

The fourth proportional to 90,114.16, 124,354.02 and 53,821.76 is: 74,271.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,114.16 : 124,354.02 = 53,821.76 : x
  2. Step 2: Convert to fraction form
    90,114.16/124,354.02 = 53,821.76/x
  3. Step 3: Cross multiply
    90,114.16x = 124,354.02 × 53,821.76
  4. Step 4: Simplify right side
    90,114.16x = 6,692,952,219.48
  5. Step 5: Solve for x
    x = 6,692,952,219.48/90,114.16
  6. Step 6: Final answer
    x = 74,271.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.